Email Converter Software Convert Emails From Any Email Client to PST, PDF, EML and 13 Formats

All major email clients are supported:

• Mozilla Thunderbird - MBOX files, Local Folders, all profiles
• Microsoft Outlook - PST and OST data files
• Apple Mail - EMLX and MBOX formats
• Gmail - via Google Takeout MBOX export
• Yahoo Mail, Windows Mail, Zimbra and 50+ more

Any email client that uses standard MBOX, EML or similar formats is supported.

Yes, batch conversion is fully supported:

• Add multiple email files or folders in a single session
• Mix different source formats - MBOX, EML, PST together
• Convert thousands of emails simultaneously
• Each source maintains its original folder structure

This saves significant time when converting emails from multiple accounts.

No. Nothing is lost. Every email keeps its attachments and formatting when you convert:

• All attachments stay in place, including documents, images and ZIP files
• The HTML layout, fonts and inline images look the same as the original
• Folder structure, sender and recipient details and original dates are kept

In short, Univik converts your email without losing attachments or formatting.

Yes, completely offline. Univik Email Converter is a desktop application:

• No internet connection required for conversion
• Your emails are processed locally on your computer
• No data is ever uploaded to external servers
• Complete privacy and security for sensitive emails

This makes it ideal for converting private, sensitive emails.

The requirements are light:

• OS: Windows 11, 10, 8.1, 8 or 7 (32-bit and 64-bit)
• RAM: 4GB minimum (8GB recommended for large mailboxes)
• Disk Space: 100MB for installation
• Framework: .NET Framework 4.8 or higher

The software handles large email archives efficiently.

Free trial converts up to 10 emails per folder:

• All features are fully functional during trial
• All 13 export targets available
• Preview, filtering and batch processing included
• No time limit on the trial period

This lets you check the software meets your needs before you buy.

Select PDF as the output format, then convert. Each email is saved as a separate PDF with the message body, headers and attachments preserved. You can batch convert a whole mailbox to PDF in one run without losing formatting, and it is the simplest way to save emails as PDF for archiving, printing or legal records.

Yes. Univik works as a universal email source converter, so you can convert mail from any client or file format, including MBOX, EML, EMLX, PST, OST and MSG. Point it at the files or folders from any email source and it converts them to your chosen format with folders and attachments intact.

Yes. Once you add a source, the folder tree lists every folder with a checkbox. Tick only the folders you want and the converter leaves the rest alone, which is called selective conversion. Pair it with the date range filter to narrow a large mailbox further.